what is twin-lock and triple lock crown?

By TonyP Date 2002-03-11 06:47

On Modern Rolexes, Only the Submariner and Sea-Dweller are fitted with trip-lock crowns. All other models are fitted with the twin-lock crown.

All current models with twinlock crowns are water resistant to 100 meters.

Submariner is WR to 300M, SD to 1220M.

By Theo Date 2002-03-11 09:59

Hi Tony,

One small correction: The Full Size YM and the Daytona are fitted also with a Triplock Crown, but they are WR to 100m. All other models use Twinlock Crown.

And something interesting.....the first Subs had Twinlock Crown.

Regards :-)

By TonyP Date 2002-03-11 22:47

Thanks for keeping me honest (and accurate) Theo!

By axcontrols Date 2002-03-11 12:31

"What" is the triplock.

Well, it has to do with the arrangement and number of the seals inside the screw-down mechanism. The triplock is more complex offering a higher level of protection.

By Ayjay (Forum Administrator) Date 2002-03-11 14:55

Triplock has three effective sealing mechanisms, Twinlocks have two....hence their names.

I want to die peacefully in my sleep like my Grandfather did......not screaming & shouting like his passengers.

By axcontrols Date 2002-03-11 17:03

and I bet some chap at Rolex got paid a fortune to come up with those catchy names.

By Ayjay (Forum Administrator) Date 2002-03-11 18:41

Maybe it's the same guy that came up with the stunning model names of: Day-Date and Lady Day-Date.....superb, I think.

By the way, AX. Shouldn't you be laying down? You are looking rather peaky...and spotty.

I want to die peacefully in my sleep like my Grandfather did......not screaming & shouting like his passengers.

By axcontrols Date 2002-03-11 18:50

I am laying down.

I'm just lying here waiting for the grim reaper and I got bored so I asked the missus to quit mourning for a while and go and make me a snack and bring my LapTop up to my deathbed.

By axcontrols Date 2002-03-11 18:57

Mr Death may be using Public Transport Nowadays so there's no reason for me to starve to death or die of boredom while I'm waiting.

By rsl007 Date 2002-03-11 21:22

Just to play safe, put some garlic on the doorknob. Or to really play safe, put a lock of hair from a virgin on the peephole of your door. The problem is........finding a virgin!!!!!!

By Dennykgee Date 2002-03-12 01:46

THE VIRGIN ! ah yes, this is my department ! first , go find the nearest school playground.. wear a dark long coat, have some candy ready.. when the teachers and cops are not looking, say.. psst. kid, want some candy? then quickly grab a kid and then pull her hair. ( girls have longer hair ) and run like the pervert that you are, then... repeat the same for as many playgrounds as time or the police will allow. okie there....... what's going on here ?......

By axcontrols Date 2002-03-12 09:10

I'm f'kin speachless...........

By Ayjay (Forum Administrator) Date 2002-03-12 10:15

Denny's dark side has reappeared.

I presume he has stopped taking his medication.

I want to die peacefully in my sleep like my Grandfather did......not screaming & shouting like his passengers.

By mjhii Date 2002-03-12 13:27

Any possibility to modify twin to triple lock crown ?

By axcontrols Date 2002-03-12 13:56

I don't think there's a chance of that happening. You'd be better off trading in your watch and getting a new one.

By rolexkit Date 2002-03-12 17:32

Is there a possibillity that vintage Subs have twin -lock crowns?

By TonyP Date 2002-03-12 17:50

Yes. See Theo's post above.

By Ayjay (Forum Administrator) Date 2002-03-12 17:52

Yes, some early 330ft and 660ft models had twinlock.

I want to die peacefully in my sleep like my Grandfather did......not screaming & shouting like his passengers.

By padi Date 2002-03-13 11:42

Hi All
In the eary 1920s many watch companies,were trying to make a waterproof
watch.Swiss case maker Frances Baumgartner made cases based on a patent
by Borgel The idea was sealing the case by taking the middle part and theading it on both sides,rotating in opposite directions.The movement and dial then were fited
within a rubber ring that screwed into the caseframe. However the Borgel based
cases did not seal well at the stem.To solve this two Swiss watchmakers in La Chax
de-Fonds Paul Perregaux and Georges Peret applied for a Swiss patent in 1925
for a screwed twinlock stem system.Hans Wilsdorf of Rolex grasped that a hermetically sealed case with careful fitting of crystal and the twinlock stem system would produce a waterproof watch.Hans Wilsdorf of Rolex negotiated to have the Paul Perregaux patent assigned to him.Hans Wilsdorf of Rolex obtained a
British patent on October 18 1926.Then in 1927 Mercedes Gleitze swam the English
Channel with a Rolex Oyster on her wrist for the entire 15hrs 15 Min swim.And thats
when the Rolex Oyster was born.
My own Paul Perregaux watch silver hallmark on case dates to 1926

Attachment: paulperregaux.jpg (23.1 kB)

Padi The Only Number One Genuine Frog

By des Date 2002-03-14 08:50

it seems like Hans Wilsdorf was a very shrewd man who looked around for opportunities in wristwatch innovations - water-proofing and the perpetual rotor which happened to be another's patent which he subsumed under Rolex....

By padi Date 2002-03-14 10:30

HI Des
Yes I agree with you a very shrewd man indeed.
Padi

Padi The Only Number One Genuine Frog

By padi Date 2002-03-16 10:27

Twinlock

Padi The Only Number One Genuine Frog

By Dennykgee Date 2002-03-16 10:46

what about twinlock?

By morgan Date 2002-03-16 14:32

Ax,

Why don't you get the missus to run down and get an XBOX!

/morgan

By axcontrols Date 2002-03-16 16:18

Ah, you think that coz I'm lying here on my death bed with nothing to do then if I got an XBoX that I'd leave turfers for a while.?

Cunning plan, but no thanks.

By padi Date 2002-03-16 16:37

Hi Ax
Whats a XBOX is that a box where one, puts ones Rolex at night?

Padi The Only Number One Genuine Frog